| Title |
Analysis on Fault Current Limiting and Recovery Characteristics of Flux-Lock Type Superconducting Fault Current Limiter According to Increase of Applied Voltage |
| Authors |
Guem-Kon Oh ; Tae-Hee Han ; Yong-Sun Cho ; Hyo-Sang Cho ; Myoung-Ho Choi ; Young-Hee Han ; Tae-Hyun Sung |
| Keywords |
Flux-Lock Type Sfcl ; Fault Current Limiting ; Recovery ; Consumed Energy |
| Abstract |
The flux-lock type SFCL consists of transformer with primary and secondary windings connected to a superconducting element in serial. It can be divided into the subtractive and the additive polarity windings according to the winding direction. It could change the fault current limiting characteristics according to the inductance ratio between the coil 1 and coil 2. We investigated the voltage-current characteristics of the flux-lock type SFCL according to the increment of applied voltage. When the applied voltage of the SFCL with the subtractive and the additive polarity windings was increased, a initial limiting current (㏐) and the quench time of the superconducting element were increased. The recovery time of the superconducting element was increased by increment of applied voltage. Therefore, it was confirmed that recovery characteristics in the flux-lock type SFCL were largely dependent on the consumed energy of a superconducting element because of increment of the consumption power into the superconducting element. |